ex4_2.m

源代码集合

clf
axis([0, 10, 0, 5]); [x, y]=ginput(10); line(x, y)

axis([0, 10, 0, 5]); hold on;  x =[]; y =[];
while (1)
   [x1, y1, button] = ginput(1);
   if (button ~= 1) break; end
   plot(x1, y1, 'o'); x = [x, x1]; y = [y, y1];
end
line(x, y);  hold off